Title:
FIBER AMPLIFIER, WAVELENGTH DIVISION MULTIPLEXING SYSTEM, AND OPTICAL COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/134109
Kind Code:
A1
Abstract:
The embodiments of the present application relate to the technical field of optical communication, and provide a fiber amplifier, a wavelength division multiplexing system, and an optical communication device. The fiber amplifier comprises: a first pump light source and a first gain fiber, the first pump light source being used for coupling pump light to the first gain fiber, and the first gain fiber comprising a first fiber core and first cladding that wraps the outer part of the first fiber core. The first fiber core has a gain medium, and the first fiber core is formed with a plurality of first gratings arranged along the length direction of the first gain fiber. The first gratings can couple a base mode of the first fiber core to a high-order mold of the first cladding transmitted in the same direction as the base mode.
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Inventors:
ZHANG PENG (CN)
XIAO MENGBEN (CN)
DONG HONGCHAO (CN)
XIAO MENGBEN (CN)
DONG HONGCHAO (CN)
Application Number:
PCT/CN2020/139709
Publication Date:
June 30, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/291; H04J14/02
Domestic Patent References:
| WO2001097342A1 | 2001-12-20 |
Foreign References:
| CN1917307A | 2007-02-21 | |||
| CN105244741A | 2016-01-13 | |||
| CN101266379A | 2008-09-17 | |||
| EP1246321A2 | 2002-10-02 |
Other References:
NICHOLSON J W, FINI J M, DESANTOLO A M, LIU X, FEDER K, WESTBROOK P S, SUPRADEEPA V R, MONBERG E, DIMARCELLO F, ORTIZ R, HEADLEY C: "Scaling the effective area of higher-order-mode erbium-doped fiber amplifiers ", OPTICS EXPRESS, vol. 20, no. 22, 12 October 2012 (2012-10-12), pages 24575 - 24584, XP055946675, DOI: 10.1364/OE.20.024575
NEMOVA, GALINA ET AL.: "High-power long-period-grating-assisted erbium-doped fiber amplifier", OPTICAL SOCIETY OF AMERICA, vol. 25, no. 8, 31 August 2008 (2008-08-31), XP007907945, DOI: 10.1364/JOSAB.25.001322
NEMOVA, GALINA ET AL.: "High-power long-period-grating-assisted erbium-doped fiber amplifier", OPTICAL SOCIETY OF AMERICA, vol. 25, no. 8, 31 August 2008 (2008-08-31), XP007907945, DOI: 10.1364/JOSAB.25.001322
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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